米6体育平台手机版

SNLA399 July 2022 OPA607

Abstract
Trademarks
1Introduction to Particulate Matter Sensors
1. 1.1 Optical Particulate Matter Measurement Instruments
  1. 1.1.1 Photometer
  2. 1.1.2 Optical Particle Counter
    1. 1.1.2.1 Determination of Size and Concentration
      1. 1.1.2.1.1 Size
      2. 1.1.2.1.2 Concentration
2. 1.2 Architecture of Optical PM Sensor
2Single Op Amp Based Analog Front End
3Optimizing for Different Photodiode Currents
4Summary

1.1.2 Optical Particle Counter

An Optical Particle Counter (OPC), measures the light scattered by each individual particle in the sample stream, to get size and concentration information. OPC gives size information, but are preferred in low concentration environments to ensure that single particle is present in front of the light source at a given time.